GB2325600A - Light gun computer interface card - Google Patents
Light gun computer interface card Download PDFInfo
- Publication number
- GB2325600A GB2325600A GB9710613A GB9710613A GB2325600A GB 2325600 A GB2325600 A GB 2325600A GB 9710613 A GB9710613 A GB 9710613A GB 9710613 A GB9710613 A GB 9710613A GB 2325600 A GB2325600 A GB 2325600A
- Authority
- GB
- United Kingdom
- Prior art keywords
- light
- light gun
- interface card
- error correction
- interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
- A63F13/20—Input arrangements for video game devices
- A63F13/23—Input arrangements for video game devices for interfacing with the game device, e.g. specific interfaces between game controller and console
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
- A63F13/20—Input arrangements for video game devices
- A63F13/21—Input arrangements for video game devices characterised by their sensors, purposes or types
- A63F13/219—Input arrangements for video game devices characterised by their sensors, purposes or types for aiming at specific areas on the display, e.g. light-guns
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
- A63F13/20—Input arrangements for video game devices
- A63F13/24—Constructional details thereof, e.g. game controllers with detachable joystick handles
- A63F13/245—Constructional details thereof, e.g. game controllers with detachable joystick handles specially adapted to a particular type of game, e.g. steering wheels
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F13/00—Video games, i.e. games using an electronically generated display having two or more dimensions
- A63F13/80—Special adaptations for executing a specific game genre or game mode
- A63F13/837—Shooting of targets
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03542—Light pens for emitting or receiving light
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
- A63F2300/00—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game
- A63F2300/80—Features of games using an electronically generated display having two or more dimensions, e.g. on a television screen, showing representations related to the game specially adapted for executing a specific type of game
- A63F2300/8076—Shooting
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
This invention concerns a computer interface card devices for light guns. This interface card can be inserted into a slot of the mother board of a personal computer. It provides multiple ports to connect light guns of computer games/video games and is compatible with video cards and monitors of different vendors. The video card connects to the interface card and monitor separately so the interface card can obtain output signals from the video card and calculate the scanning positions of the light spot on the screen. When the light spot is detected by optical sensor through the lens in the front part of the light gun, the optical sensor generates analog signals and sends them to the light gun signal converter of the interface card. The light gun signal converter converts the analog signals into digital signals and triggers the x/y position recorder to record the current x/y coordinates, It then sends the signals corrected by error correction circuit to the data input/output position decoder. The game program can obtain the current x/y position of the light gun through the data input/output position decoder by a standard interface routine.
Description
Computer interface card devices for light guns
Background of the invention
This invention concerns a computer interface card devices for light guns, in particular an interface card used in personal computer or for connection to existing computer game/video~game equipment.
With the rapid progressing of modem computer technology, the increase of the processing speed of microprocessor and the dropping of memory price while the memory capacity increasing, the game program have more rooms to exploit The game program will become more sophisticated and many problems emerges, as described below.
Because of the continuous upgrade of PC peripherals( such as video cards, monitors) with different functions, from early day's 320 x 200, 640 x 480, 800 x 500 to the present 1024 x 768 format, the internal timing clocks for light spot used by various video cards are different. Therefore the modern PC monitors are all capable of accepting different display resolutions. Many factors, such as the compatibility with video cards and monitors from different manufacturers, need to be considered when designing such devices. By contrast, a typical home TV set can only accept one kind of image resolution. The monitor used by computer games and video games are compatible with home TV set and there is only one specification for one manufacturer's computer game or video games. Therefore they don't have the compatibility problem.
Secondly, there are possible errors for the current light gun related PC peripherals due to the following reasons: 1) Monitor brands
Because there are many PC monitor makers, the monitors of different brands have slight differences to cause them have different degree of monitor light spot saturation.
2) Light gun brands
There are many manufacturers producing the input devices for light guns. The internal structures and the optical sensors used are different. Furthermore, the brightness at monitor light spot saturation is different.
3) Monitor degradation
The monitor degrades with time. The brightness at monitor light spot saturation will also degrade.
4) User adjustment
The adjustment of monitor brightness or contrast by users will effect brightness of light spot and the saturation time.
5) Monitor resolution
When resolution used by game program differs, the brightness of monitor. light spot changes. Since the brightness generated when light spot is projected onto the sensor, the saturation speed of the sensor will be different 6) Monitor frequency
Different inanufacturers use different internal light spot timing clocks when they design the circuits due to the limitation of speed of memory and integrated circuits.
The speed on the monitor changes and the travelling time of light spots different also.
The inventor of the present invention understood the aforementioned problems and engaged in depth study together with theoretical principles to offer a new kind of design in order to effectively solve the problems and provide a computer interface card devices for light guns.
Summary of the invention
The purpose of the present invention is to provide a computer interface card devices for light guns. This interface card can be inserted into a slot on the mother board of a personal computer. It provides multiple ports to connect light guns of computer games/video games and is compatible with video cards and monitors of different vendors. The video card connects to the interface card and monitor separately so the interface card can obtain output signals from the video card and calculate the scanning positions of the light spot on the screen. When the light spot is detected by optical sensor through the lens in the~front part of the light gun, the optical sensor generates analog signals and sends them to the light gun signal converter of the interface card. The light gun signal converter converts the analog signals into digital signals and triggers the x/y position recorder to record the current x/y coordinates, It then sends the signals corrected by error correction circuit to the data input/output position decoder. The game program can obtain the current x/y position of the light gun through the data input/output position decoder using a standard interface routine.
Another goal of the present invention is to provide a computer interface card devices for light guns. Because of the low costs of light guns used in computer games and video games, there are many manufacturers producing various compatible light guns every month. Therefore the users can purchase different types of light guns with reasonable prices without the needs to wait for specially designed personal computer interface card devices for light guns.
Still another goal of the present invention is to provide a computer interface card devices for light guns. Since this interface card does not requires additional signal cable to connect to the extemal signal connector of the personal computer (such as video cards, RS-232 or printer port), it provides a standard software interface routine and specification for other software companies intended to develop game programs using light guns.
Still another goal of the present invention is to provide a computer interface card devices for light guns. Since this interface card directly receives signals from optical sensor of the light gun without any intermediate encoding, it is not constrained to the speed limit set by the existing transmission protocol nor is it occupies the external extension ports of a personal computer.
Description of the drawings
In order to achieve the preceding goals the present invention applies the techniques with their effects that can be understood by reference to the following detailed description when considered in connection with the accompanying drawings:
Figure 1 is a schematic example of the present invention.
Figure 2 is a circuit block diagram of the present invention.
Figure 3 is an embodiment of the present invention.
Figure 4 is another embodiment of the present invention.
Figure 5 is still another embodiment of the present invention.
Descnption ofthe parts and components: 1 computer main body
11 mother board of the computer
111 insertion slot 2 interface card
21 light gun signal converter
22 x/y position recorder
23 x/y position generator
24 error correction circuit
25 data input/output position decoder
26 light gun connection port 3 light gun
31 optical lens
32 optical sensor 4 computer data bus 5 video card 6 monitor 7 connection conversion device 8 light gun multiplex box
Detailed descnption of the preferred embodiment
Refer to figure 1 and figure 2, the present invention concerns a computer interface card devices for light guns. It includes a computer 1, interface card 2, light gun 3, video card 5 and monitor 6, wherein:
There is a mother board 11 with slot 111 inside a computer main body 1, as shown in figure l and figure 2, so that a interface card 2 can be inserted into the mother board of the computer. There is at least one light gun connection port 26 in that interface card 2 to connect the light gun 32 of a computer game or video game (not shown). There is a n optical lens 31 and optical sensor 32 located in the front part of light gun 3 as the same order. The interface card 2 is compatible with video card 5 and monitor 6 of various vendors by the computer data bus 4. The video card 5 connects to interface card 2 and monitor separately.
Interface card 2 comprises of a set of light gun signal converter 21, a set of x/y position recorder 22, a x/y position generator 23, a set of error correction circuit 24, a data input/output position decoder 25 and other circuit units, wherein
The output of the light gun signal converter 21 connects to a xly position recorder 22. The x/y position recorder 22 connects to a x/y position generator 23 to generate horizontal and vertical coordinate position. The output of the x/y position recorder 22 connects to an error correction circuit The output of this error correction circuit connects to a data output/input position decoder 25. The data output/input position decoder 25 connects to the extension port of the video card 5 through data bus 4 in order to acquire the internal signals of the video card and then get the light spot scanning position of monitor 6. Electrons from the electronic gun of the monitor 6 impact the surface of monitor 6 to generate light spots. The scanning pattern of light spots is from left to right and then from up to bottom( instead of individual light spot, image formed by light spot trace will be seen due to the vision persistence effect of human eyes). When the game program obtains monitor 6 position pointed by the light gun. it has to set the output of video card 5 connecting to monitor 6 into white color so that the brightness of scanning light spots on monitor 6 is saturated.
When the light spots on monitor 6 are projected onto the optical sensor 32 of the light gun 3 through lens 31 of the light gun. optical sensor 32 will generate an analog signal and send the signal to light gun signal converter 21. The light gun signal converters 21 convert the analog signal into digital signal and triggers x/y position recorder 22 to record the current x/y position. The information is then fed to a data output/input position decoder 25 after passing through an error correction circuit.
This way the game program can obtain the current xiy position of the light gun 3 through the data input/output position decoder 25 using a standard interface routine.
Due to vendor difference of monitor 6 and light gun 3, the time between brightness saturation and the triggering of the optical sensor 32 will be different and error in calculating the scanning position may occur. Therefore the error need to be corrected before the game program uses the light gun 3 through the interface card 6.
The method is to show an object on monitor 6 and then tells the user to aim the light gun 3 at that object. If the light gun is aimed at the object correctly, the game program can read the light spot position from the interface card 2 and subtract from it the actual position of the object on monitor 6 to obtain the position error of. the object This error is sent to the error correction circuit 24 for calibration. Next time when the game program reads the light spot position, there will no longer be aiming position error due to the difference of monitor 6 and light gun 3.
The interface card 2 has a light gun connection port 26 so that light gun for computer game or video game can be installed directly through a connector. When the connector of the light gun is different from the light gun connection port 26, connection conversion device can be used as shown in figure 4.
The interface card can provide two light gun connection port 26 without extension as shown in figure 5. A light gun multiplex box 8 can be connected to the light gun connection port 26 to host light gun 3. Therefore it is not limited by the available space of the interface card 2, as shown in figure 3.
From the preceding description it is obvious that the present invention "computer interface card devices for light guns" is a rarely seen new type patent. It meets the requirements for patent application. We therefore issue a formal application according to the patent regulation. Please examine this case and grand us the permission to protect the inventor's legal right. If the committee members of the patent office has any question, pleas do not hesitate to contact us.
It will be understood the preceding descriptions are only preferred embodiments of the present invention. Thus, other variations that apply the equivalent structures and figures of the present invention should also fall into the content of the present
invention.
The following are features of the invention: 1. a computer interface card device for light guns, which includes:
a computer mother board with at least one extension slot;
an interface card that is connected to the extension slot of the mother board.
There is at least one light gun connection port, Interface card comprises of a set of light gun signal converter, a set of x/y position recorder, a set of error correction circuit and a data input/output position decoder. The output of the light gun signal converter connects to the x/y position recorder. The xly position recorder connects to an x/y position generator. The output of the x/y position generator connects to an error correction circuits The output of this error correction circuit connects to a data outputlinput position decoder. The data output/input position decoder connects to a video card through a computer data bus. The video card connects to the output of the x/y position generator;
a light gun which is connected to the connection port of the interface card and has an optical sensor in the front part of it; and
a monitor which is connected to the video card;
With these connections, when the light spots on monitor are projected onto the optical sensor through lens of the light gun, optical sensor generates an analog signal and send the signal to light gun signal converter. The light gun signal converters convert the analog signal into digital signal and triggers the x/y position recorder to record the current x/y position. The information is then fed to a data output/input position decoder after passing through an error correction circuit. This way the game program can obtain the current x/y position of the light gun through the data input/output position decoder using a standard interface routine.
2. a computer interface card devices for light guns as described in claim 1, wherein the user can use a connection conversion device when the light gun connection port does not match the port of the interface card.
3. a computer interface card devices for light guns as described in claim 1, wherein the interface card can provide two light gun connection ports without external expansion.
A light gun multiplex box can be connected to the light gun connection port to host light guns. Therefore it is not limited by the available space of the interface card.
Claims (1)
- CLAIMS:1. A computer interface for a light gun for use in combination with a monitor and video card, the inter face comprising: a plurality of light gun signal converters each electrically connectable to a light gun respectively for receiving analog signals generated by a respective light gun and converting the analog signals into digital signals, a plurality of x/y position recorders each electrically connected to a light gun signal converter respectively and triggered by said digital signals to record a current x/y position, an x/y position generator connected to said plurality of x/y position recorders for the generation of horizontal and vertical coordinates, a plurality of error correction circuits electrically connected to said x/y position recorders respectively for conditioning signals from said respective x/y position recorders, and a data output/input position recorder to receive signals conditioned by the respective error correction circuits; wherein a video card connected to a monitor and electrically connected by a data bus to the data input/output position decoder may supply internal signals from the video card to the input/output position decoder to determine the light spot scanning position, the video card also being electrically connected to the x/y position generator, such that a game program may obtain the current x/y position from the data output/input position recorder using a standard interface routine.2. A computer interface as claimed in claim 1, wherein the plurality of light gun signal converters, the plurality of x/y position recorders, the plurality of error correction circuits, the x/y position generator and the data output/input position recorder are electrically interconnected on an interface card for connecting to a computer motherboard.3. A computer interface as claimed in claims 1 or 2, wherein there is provided a light gun connection port for electrically connecting a light gun to the interface.4. A computer interface as claimed in claim 3, comprising a conversion device for electrically interconnecting the light gun to the light gun connection port.5. A computer interface as claimed in any of the preceding claims comprising multiplexing means for connecting a plurality of light guns to the interface.7. A method of conditioning an error correction circuit for a light gun interface comprising the steps of: (a) displaying an object on a monitor; (b) aiming the light gun at the object; (c) reading the light spot position from the interface card; (d) subtracting the read light spot position from the actual position of the object on the monitor to obtain an error correction factor; and (e) transmitting the error correction factor to an error correction circuit and thereby calibrating said error correction circuit.8. A computer interface substantially as herein described with reference to and as illustrated in Figure 2 and Figures 1, 3, 4 or 5 of the accompanying drawing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29708963U DE29708963U1 (en) | 1997-05-21 | 1997-05-21 | Computer interface card device for light guns |
| GB9710613A GB2325600A (en) | 1997-05-21 | 1997-05-22 | Light gun computer interface card |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29708963U DE29708963U1 (en) | 1997-05-21 | 1997-05-21 | Computer interface card device for light guns |
| GB9710613A GB2325600A (en) | 1997-05-21 | 1997-05-22 | Light gun computer interface card |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9710613D0 GB9710613D0 (en) | 1997-07-16 |
| GB2325600A true GB2325600A (en) | 1998-11-25 |
Family
ID=26060340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9710613A Withdrawn GB2325600A (en) | 1997-05-21 | 1997-05-22 | Light gun computer interface card |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE29708963U1 (en) |
| GB (1) | GB2325600A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999061121A1 (en) * | 1998-05-27 | 1999-12-02 | Act Labs Ltd. | Photensitive input peripheral device in a personal computer-based video gaming platform |
| EP1204019A1 (en) * | 2000-02-16 | 2002-05-08 | Namco Ltd. | Pointing device, program, and method for measuring pointed position |
| FR2819901A1 (en) * | 2001-01-25 | 2002-07-26 | Yves Jean Paul Guy Reza | INTERFACE ASSEMBLY BETWEEN A USER AND AN ELECTRONIC DEVICE |
| AU784492B2 (en) * | 2000-10-13 | 2006-04-13 | Igt | Gaming hardware simulator |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004057659B4 (en) * | 2004-11-29 | 2016-10-13 | Isocont Gmbh | Controllable interactive video system |
| DE102007029135B4 (en) | 2007-06-25 | 2016-08-04 | Siemens Healthcare Gmbh | Detecting the position of a collimated light beam impinging on a display unit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2048623A (en) * | 1979-04-26 | 1980-12-10 | Ferranti Ltd | Dual-standard display system |
-
1997
- 1997-05-21 DE DE29708963U patent/DE29708963U1/en not_active Expired - Lifetime
- 1997-05-22 GB GB9710613A patent/GB2325600A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2048623A (en) * | 1979-04-26 | 1980-12-10 | Ferranti Ltd | Dual-standard display system |
Non-Patent Citations (1)
| Title |
|---|
| IBM Tech. Disclosure Bull. Vol. 31, No. 7, Dec. 88, pp 399 -400, 'Light pen interface circuit'. * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999061121A1 (en) * | 1998-05-27 | 1999-12-02 | Act Labs Ltd. | Photensitive input peripheral device in a personal computer-based video gaming platform |
| US6171190B1 (en) | 1998-05-27 | 2001-01-09 | Act Labs, Ltd. | Photosensitive input peripheral device in a personal computer-based video gaming platform |
| US6323838B1 (en) * | 1998-05-27 | 2001-11-27 | Act Labs, Ltd. | Photosensitive input peripheral device in a personal computer-based video gaming platform |
| EP1204019A1 (en) * | 2000-02-16 | 2002-05-08 | Namco Ltd. | Pointing device, program, and method for measuring pointed position |
| EP1204019A4 (en) * | 2000-02-16 | 2003-06-25 | Namco Ltd | Pointing device, program, and method for measuring pointed position |
| US6677935B2 (en) | 2000-02-16 | 2004-01-13 | Namco Ltd. | Position pointing device, program, and pointed position detecting method |
| AU784492B2 (en) * | 2000-10-13 | 2006-04-13 | Igt | Gaming hardware simulator |
| FR2819901A1 (en) * | 2001-01-25 | 2002-07-26 | Yves Jean Paul Guy Reza | INTERFACE ASSEMBLY BETWEEN A USER AND AN ELECTRONIC DEVICE |
| WO2002059830A2 (en) * | 2001-01-25 | 2002-08-01 | Yves Reza | Interface set between a user and an electronic device |
| WO2002059830A3 (en) * | 2001-01-25 | 2004-03-25 | Yves Reza | Interface set between a user and an electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE29708963U1 (en) | 1997-07-31 |
| GB9710613D0 (en) | 1997-07-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |